That does not provide bias for the Electret mic. And no, I can't run a separate Vcc line.Something like this?
or missed the question
For power, I have available 3.3 VDC with a 3K resistor in series. Need to same voltage source/output line to supply power both to the electret mic and the amplifier.3.3V would power a discrete transistor amplifier or an IC amplifier.
I've only got 1 wire and ground coming out of the transceiver. This circuit would require a separate power source.I made this a while back and works great for a chip recorder needing a 32mV input. But for the life of me, I don't see any way to power it and output the audio on the same wire.
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